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Qin YJ, Cheng ML, Wang JX, Zhang Q, Zhou XN, Liu YH, Li H. [Interventional effect and mechanism of fermentation liquid of Dendrobium officinale leaves on alcoholic hepatitis mice]. Zhonghua Yi Xue Za Zhi 2023; 103:2801-2807. [PMID: 37723055 DOI: 10.3760/cma.j.cn112137-20230311-00378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 09/20/2023]
Abstract
Objective: To explore the intervention effect and mechanism of Dendrobium officinale leaf fermentation liquid on alcoholic hepatitis (AH) mice. Methods: Seventy inbred C57BL/6J male mice aged 6-8 weeks were selected and randomly divided into normal group (NG), model group (MG), liquid feed control group (CG), silybum group (SI), low-dose group (DL), medium-dose group (DM), and high-dose group (DH) of Dendrobium officinale fermentation liquid, with 10 mice in each group. NG group was given common feed, CG group was given control feed (LB alcoholic liquid control feed), SI group was given LB alcoholic liquid feed and silybum by gavage, DL, DM and DH groups were given LB alcoholic liquid feed and 25%, 50% and 100% concentration of Dendrobium officinale leaf fermentation liquid by gavage. An AH model was established by feeding LB alcoholic liquid feed for 8 weeks.At week 8, alanine Transaminase (ALT), triglyceride (TG), transferrin (TRF), interleukin (IL)-6, IL-10, and IL-1β, tumor necrosis factor-α(TNF-α), interferon-γ(IFN-γ) were detected in eye blood of mice. Liver tissues were stained with HE, Oil Red O, Prussian blue and immunofluorescence ROS. The contents of glutathione(GSH) and malondialdehyde (MDA) in liver tissue homogenate were detected. To analyze the intervention effect and mechanism of Dendrobium officinale leaf fermentation solution on AH mice, the mRNA and protein relative expression levels of adenylate activated protein kinase (AMPK), AMPKβ1, phosphorylated AMPKβ1 (p-AMPKβ1), tumor suppressor gene p53 (p53), solsolic vector family 7 member 11 (SLC7A11), glutathione peroxidase 4 (GXP4) were detected by polymerase chain reaction (PCR) and Western blot. Results: Compared with MG group, the serum ALT and TG levels in the DL, DM, and DH groups were all reduced [ALT: (45.94±19.85), (45.73±22.62), and (41.68±7.13) vs (75.51±17.76) U/L, respectively; TG: (0.90±0.23), (0.69±0.22) and (0.41±0.20) vs (1.28±0.19) mmol/L, respectively, all P<0.05]; IL-6, IL-1β, TNF-α, IFN-γ were decreased (all P<0.05). The serum TRF and IL-10 levels in the DM and DH groups were increased (all P<0.05). Compared with MG group, the liver tissue MDA of mice in DL, DM and DH groups was decreased [(0.41±0.05), (0.40±0.03), and (0.43±0.14) vs (0.64±0.06)μmol/g, respectively], GSH was increased (all P<0.05). Compared with MG, mRNA expression levels of AMPK (1.36±0.11, 1.61±0.17, 1.68±0.11 vs 0.80±0.12, respectively), SLC7A11 (0.91±0.12, 0.97±0.12, 0.99±0.13 vs 0.60±0.14, respectively) and GPX4 (0.51±0.11, 0.63±0.17, 0.83±0.15 vs 0.42±0.14, respectively) in the liver tissue of DL, DM and DH groups were all increased (all P<0.05). Compared with MG group, DL, DM and DH groups showed the relative expression levels of AMPKβ1, p-AMPKβ1, SLC7A11 and GPX4 were increased in the liver tissue of mice, while the relative expression levels of p53 protein were decreased (all P<0.05). Compared with MG group, DL, DM and DH groups reduced the degree of hepatic steatosis and inflammation in the lobules, while the iron and ROS staining in the liver tissue became lighter. Conclusion: Dendrobium officinale leaf fermentation liquid can alleviate the severity of AH in mice, and its mechanism may be related to the up-regulation of AMPK to inhibiting the p53/SLC7A11/GPX4 mediated Ferroptosis pathway.
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Affiliation(s)
- Y J Qin
- School of Clinical Medicine, Guizhou Medical University, Guiyang 550025, China
| | - M L Cheng
- Department of Infectious Diseases, Guizhou Provincial PeoPle's HosPital, Guiyang, 550025, China
| | - J X Wang
- School of Clinical Medicine, Guizhou Medical University, Guiyang 550025, China
| | - Q Zhang
- Department of Infectious Diseases, Guizhou Provincial PeoPle's HosPital, Guiyang, 550025, China
| | - X N Zhou
- School of Clinical Medicine, Guizhou Medical University, Guiyang 550025, China
| | - Y H Liu
- School of Clinical Medicine, Guizhou Medical University, Guiyang 550025, China
| | - H Li
- Department of Infectious Diseases, Guizhou Provincial PeoPle's HosPital, Guiyang, 550025, China
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Yao ZG, Qin YJ. [Current status and consideration of clinical and pathological diagnosis of common hereditary tumor susceptibility syndrome]. Zhonghua Bing Li Xue Za Zhi 2023; 52:538-543. [PMID: 37106305 DOI: 10.3760/cma.j.cn112151-20220829-00744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Affiliation(s)
- Z G Yao
- Department of Pathology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, China
| | - Y J Qin
- Department of Pathology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, China
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Zhou XN, Qin YJ, Cheng ML, Li H. [A case of chronic hepatitis C treated with sofosbuvir/velpatasvir combined with ribavirin among 3-year-old children with low body weight]. Zhonghua Gan Zang Bing Za Zhi 2023; 31:189-191. [PMID: 37137836 DOI: 10.3760/cma.j.cn501113-20220111-00016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Grants] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Affiliation(s)
- X N Zhou
- Guizhou Medical University, GuiYang 550001, China
| | - Y J Qin
- Guizhou Medical University, GuiYang 550001, China
| | - M L Cheng
- Department of Infection, Affiliated Hospital of Guizhou Medical University, GuiYang 550001, China
| | - H Li
- Department of Infection, Affiliated Hospital of Guizhou Medical University, GuiYang 550001, China
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Zhu CC, Qin YJ, Feng JZ, Hou DS, Li JM. [Giant intraductal oncocytic papillary neoplasm of the pancreas: report of a case]. Zhonghua Bing Li Xue Za Zhi 2021; 50:1390-1392. [PMID: 34865434 DOI: 10.3760/cma.j.cn112151-20210727-00533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Affiliation(s)
- C C Zhu
- Department of Pathology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, China
| | - Y J Qin
- Department of Pathology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, China
| | - J Z Feng
- Department of Radiology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, China
| | - D S Hou
- Department of Pathology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, China
| | - J M Li
- Department of Pathology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, China
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Yao ZG, Cheng XK, Lin CH, Li J, Lyu BB, Li JM, Jing HY, Qin YJ, Sun XC. [Genetic analysis of 45 patients with suspected Lynch syndrome using next-generation sequencing]. Zhonghua Zhong Liu Za Zhi 2021; 43:843-849. [PMID: 34407589 DOI: 10.3760/cma.j.cn112152-20190717-00441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluate the value of next generation sequencing (NGS) in the genetic testing of Lynch syndrome. Methods: Immunohistochemical method was used to detect the expressions of DNA mismatch repair (MMR) proteins, including MutL homolog 1 (MLH1), PMS1 homolog 2 (PMS2), MutS homolog 2 (MSH2) and MutS homolog 6 (MSH6) in colorectal cancer, gastric cancer and endometrial cancer tissues collected from Shandong Provincial Hospital between 2016 and 2018. The genomic DNA of 45 patients who were suspected with Lynch syndrome was extracted from non-cancerous tissue paraffin samples, which were postoperatively confirmed by microscope. The mutations of 12 genes including MLH1 and MSH2 were detected using NGS. The germline mutant sites and significance were analyzed by bioinformatics technology and further confirmed by using Sanger sequencing. Results: The immunohistochemical results showed that the 45 cases of suspected Lynch syndrome included 22 cases of MLH1 and PMS2 deficient expression, 16 cases of MLH2 and MSH6 deficient expression, and 7 cases of MMR proteins normal expression. The NGS result showed that 28 cases of adjacent sample from colon cancer patients included 4 cases of MLH1 pathogenic mutation, 1 case of suspected MLH1 mutation, 2 cases of MLH2 pathogenic mutation, 2 cases of suspected MLH2 mutation. No MMR gene mutation was found in adjacent samples of 6 cases of rectal cancer, 6 cases of gastric cancer and 7 cases of colorectal cancer with MMR normal expression. One case of MLH1 or MHL2 pathogenic mutation and one case of MLH1 suspected mutation was detected in adjacent samples of 5 cases of endometrial cancer. Moreover, NGS also detected many other genes mutations and unreported gene mutation sites. Pathogenic and suspected MLH1 and MSH2 mutations were verified by Sanger sequencing. Conclusions: High-throughput NGS is a quick, accurate and reliable technique to identify gene variants in suspected Lynch syndrome patients. It has a wide application prospect for gene testing of tumors associated with Lynch syndrome.
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Affiliation(s)
- Z G Yao
- Department of Pathology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, China
| | - X K Cheng
- Department of Pathology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, China
| | - C H Lin
- Department of Pathology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, China
| | - J Li
- Department of Pathology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, China
| | - B B Lyu
- Department of Pathology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, China
| | - J M Li
- Department of Pathology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, China
| | - H Y Jing
- Department of Pathology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, China
| | - Y J Qin
- Department of Pathology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, China
| | - X C Sun
- Department of Pathology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, China
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Dai C, Wang Z, Qin YJ, Yao ZG. [Desmoplastic infantile astrocytoma: report of a case]. Zhonghua Bing Li Xue Za Zhi 2021; 50:403-405. [PMID: 33832006 DOI: 10.3760/cma.j.cn112151-20200729-00602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- C Dai
- Department of Pathology, Shandong Provincial Hospital, Affiliated to Shandong First Medical University, Jinan 250021, China
| | - Z Wang
- Department of Pathology, Shandong Provincial Hospital, Affiliated to Shandong First Medical University, Jinan 250021, China
| | - Y J Qin
- Department of Pathology, Shandong Provincial Hospital, Affiliated to Shandong First Medical University, Jinan 250021, China
| | - Z G Yao
- Department of Pathology, Shandong Provincial Hospital, Affiliated to Shandong First Medical University, Jinan 250021, China
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Qin YJ, Lin TY, Lin XL, Liu Y, Zhao WT, Li XY, Lian M, Chen HW, Li YL, Zhang XL, Xiao D, Jia JS, Sun Y. Loss of PDK4 expression promotes proliferation, tumorigenicity, motility and invasion of hepatocellular carcinoma cells. J Cancer 2020; 11:4397-4405. [PMID: 32489458 PMCID: PMC7255379 DOI: 10.7150/jca.43459] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2019] [Accepted: 03/27/2020] [Indexed: 02/07/2023] Open
Abstract
Although the roles and underlying mechanisms of other PDK family members (i.e., PDK1, PDK2 and PDK3) in tumor progression have been extensively investigated and are well understood, the functions and underlying molecular mechanisms of pyruvate dehydrogenase kinase 4 (PDK4) in the tumorigenesis and progression of various cancers [including hepatocellular carcinoma (HCC)] remain largely unknown. In this study, we examined the expression profile of PDK4 in HCC clinical tissue specimens and the roles of PDK4 in the proliferation, tumorigenicity, motility and invasion of HCC cells. The immunohistochemistry (IHC) and quantitative real-time PCR (qRT-PCR) results revealed that PDK4 was significantly downregulated in the cohort of HCC clinical specimens. Additionally, PDK4 protein was found in both the nucleus and cytoplasm of HCC cells based on an immunofluorescence (ICC) assay, and PDK4 protein was also found in the nucleus and cytoplasm of cancer cells contained in HCC clinical specimens based on IHC. The CCK-8 assay and cell colony formation assay demonstrated that stable depletion of endogenous PDK4 by lentivirus-mediated RNA interference (RNAi) markedly promoted the proliferation of HCC cell lines (i.e., BEL-7402 and BEL-7404 cells) in vitro, while PDK4 silencing significantly enhanced the tumorigenic ability of BEL-7404 cells in vivo. In addition to enhance proliferation and tumorigenesis induced by PDK4 silencing, additional studies demonstrated that knockdown of PDK4 led to increase migration and invasion of BEL-7402 and BEL-7404 cells in vitro. Taken together, these findings suggest that the loss of PDK4 expression contributes to HCC malignant progression.
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Affiliation(s)
- Yu-Juan Qin
- Guangdong Provincial Key Laboratory of Cancer Immunotherapy Research and Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
- Institute of Comparative Medicine & Laboratory Animal Center, Southern Medical University, Guangzhou 510515, China
- Department of Radiology, The 5th Affiliated Hospital of Sun Yat-Sen University, Zhuhai 519000, China
| | - Tao-Yan Lin
- Guangdong Provincial Key Laboratory of Cancer Immunotherapy Research and Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
- Department of Pharmacy, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Xiao-Lin Lin
- Guangdong Provincial Key Laboratory of Cancer Immunotherapy Research and Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Yu Liu
- Institute of Comparative Medicine & Laboratory Animal Center, Southern Medical University, Guangzhou 510515, China
| | - Wen-Tao Zhao
- Department of Medical Oncology, The Third Affiliated Hospital of Kunming Medical University (Tumor Hospital of Yunnan Province), Kunming 650118, China
| | - Xiao-Yan Li
- Institute of Comparative Medicine & Laboratory Animal Center, Southern Medical University, Guangzhou 510515, China
| | - Mei Lian
- Institute of Comparative Medicine & Laboratory Animal Center, Southern Medical University, Guangzhou 510515, China
| | - Heng-Wei Chen
- Institute of Comparative Medicine & Laboratory Animal Center, Southern Medical University, Guangzhou 510515, China
| | - Yong-Long Li
- Institute of Comparative Medicine & Laboratory Animal Center, Southern Medical University, Guangzhou 510515, China
| | - Xiao-Ling Zhang
- Department of Physiology, Faculty of Basic Medical Sciences, Guilin Medical University, Guilin 541004, China
| | - Dong Xiao
- Guangdong Provincial Key Laboratory of Cancer Immunotherapy Research and Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
- Institute of Comparative Medicine & Laboratory Animal Center, Southern Medical University, Guangzhou 510515, China
| | - Jun-Shuang Jia
- Guangdong Provincial Key Laboratory of Cancer Immunotherapy Research and Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Yan Sun
- Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
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Yang KN, Han W, Qin YJ, Chen LN. Effects of different levels of soluble PD-L1 protein on the growth of Lewis lung cancer transplanted tumor. J BIOL REG HOMEOS AG 2019; 33:537-542. [PMID: 30972999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
To investigate the effects of different doses of soluble PD-L1 (soluble form of Programmed death ligand 1, sPD-L1) protein on Lewis lung cancer cells, flow cytometry was used to detect the expression of PD-L1 (Programmed death ligand 1) on the surface of Lewis lung cancer cell lines and the expression of PD-1 on the surface of T lymphocytes in peripheral blood and spleen cells of C57BL/6 mice. A Lewis lung cancer animal model of C57BL/6 mice was established by transplanting Lewis lung cancer cells subcutaneously. The sPD-L1 protein was injected into the abdominal cavity of the mouse (sPD-L1 Ig) (working dose: 2.5, 5, 10 μg per mouse), while the sPD-L1 control protein was injected as a control. The growth of Lewis lung cancer xenografts was observed. On the 18th day after tumor cell inoculation, T lymphocyte subsets in mouse spleen were determined by flow cytometry. The PD-1 molecules on the surface of Lewis lung cancer cell line, C57BL/6 mouse spleen T lymphocytes and peripheral blood T lymphocytes were positively expressed. Compared with the control group, the volume of the transplanted tumor of Lewis lung cancer in C57BL/6 mice was larger with 10 μg sPD-L1 I g injection (P less than 0.05), and no significant difference was observed in tumor volume with 2.5 μg and 5 μg injection (P > 0.05). A certain level of soluble PD-L1 (10 μg/ mouse) could promote the growth of transplanted tumors of Lewis lung cancer in C57BL/6 mice.
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Affiliation(s)
- K N Yang
- Respiratory and Critical Care Medicine, Weifang Respiratory Disease Hospital (Weifang No.2 people's Hospital), Weifang, Shandong, China
| | - W Han
- Respiratory and Critical Care Medicine, Weifang Respiratory Disease Hospital (Weifang No.2 people's Hospital), Weifang, Shandong, China
| | - Y J Qin
- Respiratory and Critical Care Medicine, Weifang Respiratory Disease Hospital (Weifang No.2 people's Hospital), Weifang, Shandong, China
| | - L N Chen
- Respiratory and Critical Care Medicine, Weifang Respiratory Disease Hospital (Weifang No.2 people's Hospital), Weifang, Shandong, China
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9
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Yao ZG, Wang YK, Qin YJ, Zhao MQ, Li X. A rare case of rectal interdigitating dentritic cell sarcoma presenting with a polypoid appearance. Pathology 2016; 48:744-746. [PMID: 27780598 DOI: 10.1016/j.pathol.2016.07.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2016] [Revised: 07/09/2016] [Accepted: 07/27/2016] [Indexed: 11/26/2022]
Affiliation(s)
- Z G Yao
- Department of Pathology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China
| | - Y K Wang
- Department of Pathology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China
| | - Y J Qin
- Department of Pathology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China.
| | - M Q Zhao
- Department of Pathology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China
| | - X Li
- Medical Care Department of Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
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10
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Wei F, Rong XX, Xie RY, Jia LT, Wang HY, Qin YJ, Chen L, Shen HF, Lin XL, Yang J, Yang S, Hao WC, Chen Y, Xiao SJ, Zhou HR, Lin TY, Chen YS, Sun Y, Yao KT, Xiao D. Cytokine-induced killer cells efficiently kill stem-like cancer cells of nasopharyngeal carcinoma via the NKG2D-ligands recognition. Oncotarget 2016; 6:35023-39. [PMID: 26418951 PMCID: PMC4741506 DOI: 10.18632/oncotarget.5280] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2015] [Accepted: 09/04/2015] [Indexed: 02/07/2023] Open
Abstract
Cancer stem cells (CSCs) are considered to be the root cause for cancer treatment failure. Thus, there remains an urgent need for more potent and safer therapies against CSCs for curing cancer. In this study, the antitumor activity of cytokine-induced killer (CIK) cells against putative CSCs of nasopharyngeal carcinoma (NPC) was fully evaluated in vitro and in vivo. To visualize putative CSCs in vitro by fluorescence imaging, and image and quantify putative CSCs in tumor xenograft-bearing mice by in vivo bioluminescence imaging, NPC cells were engineered with CSC detector vector encoding GFP and luciferase (Luc) under control of Nanog promoter. Our study reported in vitro intense tumor-killing activity of CIK cells against putative CSCs of NPC, as revealed by percentage analysis of side population cells, tumorsphere formation assay and Nanog-promoter-GFP-Luc reporter gene strategy plus time-lapse recording. Additionally, time-lapse imaging firstly illustrated that GFP-labeled or PKH26-labeled putative CSCs or tumorspheres were usually attacked simultaneously by many CIK cells and finally killed by CIK cells, suggesting the necessity of achieving sufficient effector-to-target ratios. We firstly confirmed that NKG2D blockade by anti-NKG2D antibody significantly but partially abrogated CIK cell-mediated cytolysis against putative CSCs. More importantly, intravenous infusion of CIK cells significantly delayed tumor growth in NOD/SCID mice, accompanied by a remarkable reduction in putative CSC number monitored by whole-body bioluminescence imaging. Taken together, our findings suggest that CIK cells demonstrate the intense tumor-killing activity against putative CSCs of NPC, at least in part, by NKG2D-ligands recognition. These results indicate that CIK cell-based therapeutic strategy against CSCs presents a promising and safe approach for cancer treatment.
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Affiliation(s)
- Fang Wei
- Cancer Research Institute, Southern Medical University, Guangzhou 510515, China.,Guangzhou Digestive Disease Center, Guangzhou First People's Hospital, Guangzhou Medical University, Guangzhou 510180, China
| | - Xiao-Xiang Rong
- Department of Oncology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Rao-Ying Xie
- Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Li-Ting Jia
- Department of Pathology, Guilin Medical College, Guilin 541001, China
| | - Hui-Yan Wang
- Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Yu-Juan Qin
- Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Lin Chen
- Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Hong-Fen Shen
- Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Xiao-Lin Lin
- Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Jie Yang
- Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Sheng Yang
- Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Wei-Chao Hao
- Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Yan Chen
- Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Sheng-Jun Xiao
- Department of Pathology, Guilin Medical College, Guilin 541001, China
| | - Hui-Rong Zhou
- Department of Pathology, Guilin Medical College, Guilin 541001, China
| | - Tao-Yan Lin
- Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Yu-Shuang Chen
- Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Yan Sun
- Children's Hospital Boston, Harvard Medical School, Boston, Massachusetts 02115, USA
| | - Kai-Tai Yao
- Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Dong Xiao
- Cancer Research Institute, Southern Medical University, Guangzhou 510515, China.,Institute of Comparative Medicine & Laboratory Animal Center, Southern Medical University, Guangzhou 510515, China
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Wang SC, Lin XL, Wang HY, Qin YJ, Chen L, Li J, Jia JS, Shen HF, Yang S, Xie RY, Wei F, Gao F, Rong XX, Yang J, Zhao WT, Zhang TT, Shi JW, Yao KT, Luo WR, Sun Y, Xiao D. Hes1 triggers epithelial-mesenchymal transition (EMT)-like cellular marker alterations and promotes invasion and metastasis of nasopharyngeal carcinoma by activating the PTEN/AKT pathway. Oncotarget 2015; 6:36713-30. [PMID: 26452025 PMCID: PMC4742206 DOI: 10.18632/oncotarget.5457] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2014] [Accepted: 09/21/2015] [Indexed: 02/07/2023] Open
Abstract
Overexpression of the transcriptional factor Hes1 (hairy and enhancer of split-1) has been observed in numerous cancers, but the precise roles of Hes1 in epithelial-mesenchymal transition (EMT), cancer invasion and metastasis remain unknown. Our current study firstly revealed that Hes1 upregulation in a cohort of human nasopharyngeal carcinoma (NPC) biopsies is significantly associated with the EMT, invasive and metastatic phenotypes of cancer. In the present study, we found that Hes1 overexpression triggered EMT-like cellular marker alterations of NPC cells, whereas knockdown of Hes1 through shRNA reversed the EMT-like phenotypes, as strongly supported by Hes1-mediated EMT in NPC clinical specimens described above. Gain-of-function and loss-of-function experiments demonstrated that Hes1 promoted the migration and invasion of NPC cells in vitro. In addition, exogenous expression of Hes1 significantly enhanced the metastatic ability of NPC cells in vivo. Chromatin immunoprecipitation (ChIP) assays showed that Hes1 inhibited PTEN expression in NPC cells through binding to PTEN promoter region. Increased Hes1 expression and decreased PTEN expression were also observed in a cohort of NPC biopsies. Additional studies demonstrated that Hes1-induced EMT-like molecular changes and increased motility and invasion of NPC cells were mediated by PTEN. Taken together, our results suggest, for what we believe is the first time, that Hes1 plays an important role in the invasion and metastasis of NPC through inhibiting PTEN expression to trigger EMT-like phenotypes.
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Affiliation(s)
- Sheng-Chun Wang
- 1 Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
- 4 Department of Pathology, Guangdong Medical University, Dongguan 523808, China
| | - Xiao-Lin Lin
- 1 Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Hui-Yan Wang
- 1 Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Yu-Juan Qin
- 1 Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Lin Chen
- 1 Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Jing Li
- 1 Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Jun-Shuang Jia
- 1 Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Hong-Fen Shen
- 1 Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Sheng Yang
- 1 Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Rao-Ying Xie
- 1 Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Fang Wei
- 1 Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Fei Gao
- 1 Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
- 6 Department of Gastroenterology, The First Affiliated Hospital of Jinan University, Guangzhou 510630, China
| | - Xiao-Xiang Rong
- 5 Department of Oncology, Traditional Chinese Medicine-Integrated Hospital, Southern Medical University, Guangzhou, Guangdong 510315, China
| | - Jie Yang
- 1 Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Wen-Tao Zhao
- 1 Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Ting-Ting Zhang
- 1 Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Jun-Wen Shi
- 1 Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Kai-Tai Yao
- 1 Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Wei-Ren Luo
- 1 Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Yan Sun
- 3 Joint Program in Transfusion Medicine, Children's Hospital Boston, Harvard Medical School, Boston, Massachusetts 02115, USA
| | - Dong Xiao
- 1 Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
- 2 Institute of Comparative Medicine & Laboratory Animal Center, Southern Medical University, Guangzhou 510515, China
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12
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Wang SC, Lin XL, Wang HY, Qin YJ, Chen L, Li J, Jia JS, Shen HF, Yang S, Xie RY, Wei F, Gao F, Rong XX, Yang J, Zhao WT, Zhang TT, Shi JW, Yao KT, Luo WR, Sun Y, Xiao D. Hes1 triggers epithelial-mesenchymal transition (EMT)-like cellular marker alterations and promotes invasion and metastasis of nasopharyngeal carcinoma by activating the PTEN/AKT pathway. Oncotarget 2015. [PMID: 26452025 DOI: hes1 triggers epithelial-mesenchymal transition (emt)-like cellular marker alterations and promotes invasion and metastasis of nasopharyngeal carcinoma by activating the pten/akt pathway] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Overexpression of the transcriptional factor Hes1 (hairy and enhancer of split-1) has been observed in numerous cancers, but the precise roles of Hes1 in epithelial-mesenchymal transition (EMT), cancer invasion and metastasis remain unknown. Our current study firstly revealed that Hes1 upregulation in a cohort of human nasopharyngeal carcinoma (NPC) biopsies is significantly associated with the EMT, invasive and metastatic phenotypes of cancer. In the present study, we found that Hes1 overexpression triggered EMT-like cellular marker alterations of NPC cells, whereas knockdown of Hes1 through shRNA reversed the EMT-like phenotypes, as strongly supported by Hes1-mediated EMT in NPC clinical specimens described above. Gain-of-function and loss-of-function experiments demonstrated that Hes1 promoted the migration and invasion of NPC cells in vitro. In addition, exogenous expression of Hes1 significantly enhanced the metastatic ability of NPC cells in vivo. Chromatin immunoprecipitation (ChIP) assays showed that Hes1 inhibited PTEN expression in NPC cells through binding to PTEN promoter region. Increased Hes1 expression and decreased PTEN expression were also observed in a cohort of NPC biopsies. Additional studies demonstrated that Hes1-induced EMT-like molecular changes and increased motility and invasion of NPC cells were mediated by PTEN. Taken together, our results suggest, for what we believe is the first time, that Hes1 plays an important role in the invasion and metastasis of NPC through inhibiting PTEN expression to trigger EMT-like phenotypes.
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Affiliation(s)
- Sheng-Chun Wang
- Cancer Research Institute, Southern Medical University, Guangzhou 510515, China.,Department of Pathology, Guangdong Medical University, Dongguan 523808, China
| | - Xiao-Lin Lin
- Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Hui-Yan Wang
- Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Yu-Juan Qin
- Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Lin Chen
- Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Jing Li
- Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Jun-Shuang Jia
- Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Hong-Fen Shen
- Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Sheng Yang
- Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Rao-Ying Xie
- Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Fang Wei
- Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Fei Gao
- Cancer Research Institute, Southern Medical University, Guangzhou 510515, China.,Department of Gastroenterology, The First Affiliated Hospital of Jinan University, Guangzhou 510630, China
| | - Xiao-Xiang Rong
- Department of Oncology, Traditional Chinese Medicine-Integrated Hospital, Southern Medical University, Guangzhou, Guangdong 510315, China
| | - Jie Yang
- Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Wen-Tao Zhao
- Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Ting-Ting Zhang
- Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Jun-Wen Shi
- Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Kai-Tai Yao
- Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Wei-Ren Luo
- Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Yan Sun
- Joint Program in Transfusion Medicine, Children's Hospital Boston, Harvard Medical School, Boston, Massachusetts 02115, USA
| | - Dong Xiao
- Cancer Research Institute, Southern Medical University, Guangzhou 510515, China.,Institute of Comparative Medicine & Laboratory Animal Center, Southern Medical University, Guangzhou 510515, China
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13
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Wang SC, Lin XL, Wang HY, Qin YJ, Chen L, Li J, Jia JS, Shen HF, Yang S, Xie RY, Wei F, Gao F, Rong XX, Yang J, Zhao WT, Zhang TT, Shi JW, Yao KT, Luo WR, Sun Y, Xiao D. Hes1 triggers epithelial-mesenchymal transition (EMT)-like cellular marker alterations and promotes invasion and metastasis of nasopharyngeal carcinoma by activating the PTEN/AKT pathway. Oncotarget 2015. [PMID: 26452025 DOI: hes1 triggers epithelial-mesenchymal transition (emt)-like cellular marker alterations and promotes invasion and metastasis of nasopharyngeal carcinoma by activating the pten/akt pathway] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
Overexpression of the transcriptional factor Hes1 (hairy and enhancer of split-1) has been observed in numerous cancers, but the precise roles of Hes1 in epithelial-mesenchymal transition (EMT), cancer invasion and metastasis remain unknown. Our current study firstly revealed that Hes1 upregulation in a cohort of human nasopharyngeal carcinoma (NPC) biopsies is significantly associated with the EMT, invasive and metastatic phenotypes of cancer. In the present study, we found that Hes1 overexpression triggered EMT-like cellular marker alterations of NPC cells, whereas knockdown of Hes1 through shRNA reversed the EMT-like phenotypes, as strongly supported by Hes1-mediated EMT in NPC clinical specimens described above. Gain-of-function and loss-of-function experiments demonstrated that Hes1 promoted the migration and invasion of NPC cells in vitro. In addition, exogenous expression of Hes1 significantly enhanced the metastatic ability of NPC cells in vivo. Chromatin immunoprecipitation (ChIP) assays showed that Hes1 inhibited PTEN expression in NPC cells through binding to PTEN promoter region. Increased Hes1 expression and decreased PTEN expression were also observed in a cohort of NPC biopsies. Additional studies demonstrated that Hes1-induced EMT-like molecular changes and increased motility and invasion of NPC cells were mediated by PTEN. Taken together, our results suggest, for what we believe is the first time, that Hes1 plays an important role in the invasion and metastasis of NPC through inhibiting PTEN expression to trigger EMT-like phenotypes.
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Affiliation(s)
- Sheng-Chun Wang
- Cancer Research Institute, Southern Medical University, Guangzhou 510515, China.,Department of Pathology, Guangdong Medical University, Dongguan 523808, China
| | - Xiao-Lin Lin
- Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Hui-Yan Wang
- Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Yu-Juan Qin
- Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Lin Chen
- Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Jing Li
- Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Jun-Shuang Jia
- Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Hong-Fen Shen
- Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Sheng Yang
- Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Rao-Ying Xie
- Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Fang Wei
- Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Fei Gao
- Cancer Research Institute, Southern Medical University, Guangzhou 510515, China.,Department of Gastroenterology, The First Affiliated Hospital of Jinan University, Guangzhou 510630, China
| | - Xiao-Xiang Rong
- Department of Oncology, Traditional Chinese Medicine-Integrated Hospital, Southern Medical University, Guangzhou, Guangdong 510315, China
| | - Jie Yang
- Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Wen-Tao Zhao
- Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Ting-Ting Zhang
- Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Jun-Wen Shi
- Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Kai-Tai Yao
- Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Wei-Ren Luo
- Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Yan Sun
- Joint Program in Transfusion Medicine, Children's Hospital Boston, Harvard Medical School, Boston, Massachusetts 02115, USA
| | - Dong Xiao
- Cancer Research Institute, Southern Medical University, Guangzhou 510515, China.,Institute of Comparative Medicine & Laboratory Animal Center, Southern Medical University, Guangzhou 510515, China
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14
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Rong XX, Wei F, Lin XL, Qin YJ, Chen L, Wang HY, Shen HF, Jia LT, Xie RY, Lin TY, Hao WC, Yang J, Yang S, Cheng YS, Huang WH, Li AM, Sun Y, Luo RC, Xiao D. Recognition and killing of cancer stem-like cell population in hepatocellular carcinoma cells by cytokine-induced killer cells via NKG2d-ligands recognition. Oncoimmunology 2015; 5:e1086060. [PMID: 27141341 PMCID: PMC4839362 DOI: 10.1080/2162402x.2015.1086060] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Revised: 08/16/2015] [Accepted: 08/19/2015] [Indexed: 12/14/2022] Open
Abstract
There is an urgent need for more potent and safer approaches to eradicate cancer stem cells (CSCs) for curing cancer. In this study, we investigate cancer-killing activity (CKA) of cytokine-induced killer (CIK) cells against CSCs of hepatocellular carcinoma (HCC). To visualize CSCs in vitro by fluorescence imaging, and image and quantify CSCs in tumor xenograft-bearing mice by bioluminescence imaging, HCC cells were engineered with CSC detector vector encoding GFP and luciferase controlled by Nanog promoter. We found that CIK cells have a strong CKA in vitro against putative CSCs of HCC, as shown by tumorsphere formation and time-lapse imaging. Additionally, time-lapse recording firstly revealed that putative CSCs were attacked simultaneously by many CIK cells and finally eradicated by CIK cells, indicating the necessity of achieving sufficient effector-to-target ratios. We firstly illustrated that anti-NKG2D antibody blocking partially but significantly inhibited CKA of CIK cells against putative CSCs. More importantly, intravenous infusion of CIK cells remarkably delayed tumor growth in mice with a significant decrease in putative CSC number monitored by bioluminescence imaging. Taken together, these findings demonstrate CKA of CIK cells against putative CSCs of HCC, at least in part, by NKG2D-ligands recognition.
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Affiliation(s)
- Xiao-Xiang Rong
- Department of Oncology, Traditional Chinese Medicine-Integrated Hospital, Southern Medical University, Guangzhou, China; Department of Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Fang Wei
- Guangdong Provincial Key Laboratory of Cancer Immunotherapy and Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, Southern Medical University , Guangzhou, China
| | - Xiao-Lin Lin
- Guangdong Provincial Key Laboratory of Cancer Immunotherapy and Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, Southern Medical University , Guangzhou, China
| | - Yu-Juan Qin
- Guangdong Provincial Key Laboratory of Cancer Immunotherapy and Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, Southern Medical University , Guangzhou, China
| | - Lin Chen
- Guangdong Provincial Key Laboratory of Cancer Immunotherapy and Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, Southern Medical University , Guangzhou, China
| | - Hui-Yan Wang
- Guangdong Provincial Key Laboratory of Cancer Immunotherapy and Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, Southern Medical University , Guangzhou, China
| | - Hong-Fen Shen
- Guangdong Provincial Key Laboratory of Cancer Immunotherapy and Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, Southern Medical University , Guangzhou, China
| | - Li-Ting Jia
- Department of Pathology, Guilin Medical College , Guilin, China
| | - Rao-Ying Xie
- Guangdong Provincial Key Laboratory of Cancer Immunotherapy and Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, Southern Medical University , Guangzhou, China
| | - Tao-Yan Lin
- Guangdong Provincial Key Laboratory of Cancer Immunotherapy and Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, Southern Medical University , Guangzhou, China
| | - Wei-Chao Hao
- Guangdong Provincial Key Laboratory of Cancer Immunotherapy and Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, Southern Medical University , Guangzhou, China
| | - Jie Yang
- Guangdong Provincial Key Laboratory of Cancer Immunotherapy and Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, Southern Medical University , Guangzhou, China
| | - Sheng Yang
- Guangdong Provincial Key Laboratory of Cancer Immunotherapy and Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, Southern Medical University , Guangzhou, China
| | - Yu-Shuang Cheng
- Guangdong Provincial Key Laboratory of Cancer Immunotherapy and Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, Southern Medical University , Guangzhou, China
| | - Wen-Hua Huang
- Department of Anatomy, Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering , School of Basic Medical Science, Southern Medical University , Guangzhou, China
| | - Ai-Min Li
- Department of Oncology, Traditional Chinese Medicine-Integrated Hospital , Southern Medical University , Guangzhou, China
| | - Yan Sun
- Children's Hospital Boston, Harvard Medical School , Boston, MA, USA
| | - Rong-Cheng Luo
- Department of Oncology, Traditional Chinese Medicine-Integrated Hospital , Southern Medical University , Guangzhou, China
| | - Dong Xiao
- Guangdong Provincial Key Laboratory of Cancer Immunotherapy and Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, Southern Medical University, Guangzhou, China; Institute of Comparative Medicine & Laboratory Animal Center, Southern Medical University, Guangzhou, China
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15
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Zhou WB, Feng B, Huang HZ, Liu P, Yu HS, Zhao Y, Qin YJ, Kang LP, Ma BP. Hydrolysis of timosaponin BII by the crude enzyme from Aspergillus niger AS 3.0739. J Asian Nat Prod Res 2010; 12:955-961. [PMID: 21061217 DOI: 10.1080/10286020.2010.510470] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Timosaponin BII (1), a steroidal saponin showing potential anti-dementia activity, was regioselectively hydrolyzed into its deglycosyl derivatives by the crude enzyme from Aspergillus niger AS 3.0739. Three biotransformation products, timosaponin BII-a (2), timosaponin BII-b (3), and timosaponin BII-c (4), were purified and their structures were elucidated on the basis of 1D NMR, 2D NMR, FAB-MS, and HR-ESI-MS spectral data. Compounds 2 and 3 are new compounds.
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Affiliation(s)
- Wen-Bin Zhou
- Beijing Institute of Radiation Medicine, Beijing, China
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16
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Chen QG, Zeng YS, Qu ZQ, Tang JY, Qin YJ, Chung P, Wong R, Hägg U. The effects of Rhodiola rosea extract on 5-HT level, cell proliferation and quantity of neurons at cerebral hippocampus of depressive rats. Phytomedicine 2009; 16:830-838. [PMID: 19403286 DOI: 10.1016/j.phymed.2009.03.011] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2008] [Revised: 02/11/2009] [Accepted: 03/23/2009] [Indexed: 05/27/2023]
Abstract
The purpose of this study was to investigate the effects of Rhodiola rosea extract and depression on the serotonin (5-HT) level, cell proliferation and quantity of neurons at cerebral hippocampus of depressive rats induced by Chronic Mild Stress (CMS). Seventy male Sprague-Dawley rats were divided into seven groups (10 per group): normal control group, untreated depressive rat model group, negative control group, positive control group, low dosage Rhodiola rosea extract (1.5g/kg) group, medium dosage Rhodiola rosea extract (3g/kg) group and high dosage Rhodiola rosea extract (6g/kg) group. After the depressive rats induced by CMS had received Rhodiola rosea extract for 3 weeks, the 5-HT levels at cerebral hippocampus were detected by high performance liquid chromatography. Bromodeoxyuridine (BrdU) was injected in vivo to label the proliferating cells at hippocampus, and morphometry was used to count the hippocampal neurons. The results showed that the 5-HT level of the three experimental groups had recovered to normal status. The immunohistochemistry of hippocampus BrdU positive cells had returned to the normal level in the group of depressive rats with low dosage Rhodiola rosea extract. In conclusion the results demonstrated that Rhodiola rosea extract could improve 5-HT level in hippocampus in depressive rats, and low dosage Rhodiola rosea could induce neural stem cell proliferation at hippocampus to return to normal level, repairing the injured neurons at hippocampus.
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Affiliation(s)
- Q G Chen
- Department of Histology and Embryology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
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17
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Abstract
China has the largest population in the world; approximately 7% of the total population suffers from primary osteoporosis. Osteoporosis is mainly characterized by low bone mineral density (BMD). In the present study, familial correlation and segregation analyses for spine and hip BMDs have been undertaken for the first time in a Chinese sample composed of 401 nuclear families with a total of 1260 individuals. The results indicate a major gene of additive inheritance for hip BMD, whereas there is no evidence of a major gene influencing spine BMD. Significant familial residual effects are found for both traits, and heritability estimates (+/-SE) for spine and hip BMDs are 0.807(0.099) and 0.897(0.101), respectively. Sex and age differences in genotype-specific average BMD are also observed. This study provides the first evidence quantifying the high degree of genetic determination of BMD variation in the Chinese.
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Affiliation(s)
- P Y Liu
- Laboratory of Molecular and Statistical Genetics, College of Life Sciences, Hunan Normal University, ChangSha, Hunan 410081, PR China
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18
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Abstract
In the present study, we simultaneously test linkage and/or association of the collagen type I alpha 2 (COL1A2) gene with bone mineral density (BMD) and bone area. A total of 1280 subjects from 407 Chinese nuclear families (including both parents and their daughters) were genotyped for an intragenic marker MspI in the COL1A2 gene. BMD and bone area at the lumbar spine and hip were measured by dual-energy X-ray absorptiometry. Applying the QTDT (quantitative transmission disequilibrium test) program, we performed tests for population stratification, within-family association (via transmission disequilibrium test), total association, linkage, and linkage while modeling association. Significant or marginal within-family associations were found with BMD at the lumbar spine (P = 0.013), trochanter (P = 0.004), and total hip (P = 0.053) and with bone area at the intertrochanteric region (P = 0.024) and total hip (P = 0.048). The positive associations were confirmed in permutations except for bone area at total hip (P > 0.10). A small proportion (<1%) of the population variance of bone phenotypes can be explained by the MspI polymorphism; however, it may be underestimated given the significant population stratification detected in our sample. Due to the limited number of sib pairs in this sample, we did not find evidence of linkage. In summary, the MspI polymorphism is likely to be in linkage disequilibrium with a nearby functional mutation affecting BMD and bone area.
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Affiliation(s)
- F Y Deng
- Laboratory of Molecular and Statistical Genetics, College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, People's Republic of China.
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19
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Liu XH, Liu YJ, Jiang DK, Li YM, Li MX, Qin YJ, Jian WX, Zhou Q, Deng HW. No evidence for linkage and/or association of human alpha2-HS glycoprotein gene with bone mineral density variation in Chinese nuclear families. Calcif Tissue Int 2003; 73:244-50. [PMID: 14667137 DOI: 10.1007/s00223-002-0005-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Osteoporosis is an important health problem in the world. Alpha2-HS glycoprotein (AHSG) is involved in bone formation and metabolism and has been considered as an important candidate gene for osteoporosis. In this study, we simultaneously tested linkage and/or association of the AHSG gene with the variation of bone mineral density (BMD), an important risk factor for osteoporosis. A sample of 1,260 subjects from 401 Chinese nuclear families (including both parents and their daughters) were studied. The daughters' ages ranged from 20 to 45 years. All the subjects were genotyped by PCR-RFLP (polymerase chain reaction-restriction fragment length polymorphism) at polymorphic Sac I site inside the exon 7 of the AHSG gene. This polymorphism involves a nucleotide substitution of C to G at the middle nucleotide of the codon at amino acid position 238, resulting in the replacement of threonine (ACC) with serine (AGC). BMD was measured at the lumbar spine and hip region by dual-energy X-ray absorptiometry (DXA). Using the QTDT (quantitative trait transmission disequilibrium test), we found no significant results for association or linkage between the AHSG gene and BMD variation at the spine or hip. Our data provided no evidence to support the AHSG gene as a quantitative trait locus (QTL) for the BMD variation in a Chinese population.
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Affiliation(s)
- X H Liu
- Laboratory of Molecular and Statistical Genetics, College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, PR China
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20
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Qin YJ, Gao D, Wang ZN. [Alpha-acetolactate decarboxylase from B. licheniformis AS10106: cloning and expression gene in E. coli and S. cerevisiae]. Yi Chuan Xue Bao 2000; 27:165-9. [PMID: 10887685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Abstract
A genomic library of B. licheniformis AS10106 that contained the alpha-acetolactate decarboxylase gene(alpha-ALDC) was constructed with vector pUC19 and host E. coli JM109 strain. The inserted fragments of foreign DNA ranged from 4 to 10 kb in the 4800 clones thus obtained. Six positive clones were detected after screening the plated library by the method of clony coloration. Subcloning of the DNA fragment containing the alpha-acetolactate decarboxylase gene showed that the alpha-acetolactate decarboxylase gene was on an 1.6 kb BamH I-EcoR I fragment. Preliminary analysis of the enzyme expressed from one recombinant plasmid pGEA showed that the properties of the recombinant enzyme, such as the optimal temperature and pH of reaction, were identical to those of the native enzyme. Using yeast-E. coli shuttle vector pYES2, an expression recombinant plasmid pYEA containing B. licheniformis AS10106 alpha-acetolactate decarboxylase gene was constructed. S. cerevisiae H158 transformed with pYEA had expressed alpha-acetolactate decarboxylase activity and shown the ability to reduce the formation of diacetyl during beer fermentation.
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Affiliation(s)
- Y J Qin
- Department of Microbiology, Shandong University, Jinan, China
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21
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Qin YJ, Zhang JF, Wei YJ, Ding JF, Chen KH, Tang J. Gene suture--a novel method for intramuscular gene transfer and its application in hypertension therapy. Life Sci 1999; 65:2193-203. [PMID: 10576591 DOI: 10.1016/s0024-3205(99)00484-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
In this report, reporter gene beta-galactosidase (LacZ) was chosen to compare two different intramuscular gene transfer methods, direct injection and gene suture. Evidence showed that gene suture can produce a higher foreign gene express efficiency in skeletal muscle compared with the direct injection method. The highly efficient eukaryotic expressing vectors of human atrial natriuretic factor (ANF) were constructed (pcD2/pAdVAntage/hANF and pcDNA3/hANF), and in vivo ANF gene delivery was performed by intramuscular gene suture. The effects of ANF gene transfer on blood pressure and renal sodium and water excretion were studied in three models of hypertensive animals. Results showed that a marked decrease of mean arterial pressure (MAP) and a significant increase of urine volume and urinary sodium excretion was produced in rats receiving the hANF construct due to the local expression of ANF and its secretion into plasma. Taken together, these results indicate that gene suture may represent a novel gene delivery modality in gene therapy.
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Affiliation(s)
- Y J Qin
- Institute of Cardiovascular Basic Research, Beijing Medical University, PR China
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22
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Qin YJ, Tang J, Chen GH. [Cardiotrophin-1: a new cytokin that induces cardiac myocyte hypertrophy]. Sheng Li Ke Xue Jin Zhan 1998; 29:148-50. [PMID: 12501684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
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